A map showing existing grizzly bear populations in the Lower 48 states. Lance Olsen notes that communities around both the Greater Yellowstone (orange) and Northern Continental Divide (blue) are among the fastest growing in the country. The best hope for achieving real bear recovery is having a grizzly "metapopulation" which would involve connecting Greater Yellowstone with the Northern Continental Divide ecosystems and getting grizzlies restored to the Bitterroot Ecosystem (marked in green). Map courtesy U.S. Fish and Wildlife Service.